/Engine/Plugins/Animation/LiveLink/Source/LiveLinkGraphNode/Public/K2Node_EvaluateLiveLinkFrame.h
Verify if selected role class is valid for evaluation
bool IsRoleValidForEvaluation ( [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [ULiveLinkRole](API\Runtime\LiveLinkInterface\ULiveLinkRole) > InRoleClass ) const